81668340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2053}}^1$

素因数の和:2098

約数の個数: 144

約数和(自身を含む): 282613968

約数和(自身を除く): 200945628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 2053, 2210, 2340, 2652, 3060, 3315, 3978, 4106, 4420, 6159, 6630, 7956, 8212, 9945, 10265, 12318, 13260, 18477, 19890, 20530, 24636, 26689, 30795, 34901, 36954, 39780, 41060, 53378, 61590, 69802, 73908, 80067, 92385, 104703, 106756, 123180, 133445, 139604, 160134, 174505, 184770, 209406, 240201, 266890, 314109, 320268, 349010, 369540, 400335, 418812, 453713, 480402, 523515, 533780, 628218, 698020, 800670, 907426, 960804, 1047030, 1201005, 1256436, 1361139, 1570545, 1601340, 1814852, 2094060, 2268565, 2402010, 2722278, 3141090, 4083417, 4537130, 4804020, 5444556, 6282180, 6805695, 8166834, 9074260, 13611390, 16333668, 20417085, 27222780, 40834170, 81668340]

約数ペア:

[(1, 81668340), (2, 40834170), (3, 27222780), (4, 20417085), (5, 16333668), (6, 13611390), (9, 9074260), (10, 8166834), (12, 6805695), (13, 6282180), (15, 5444556), (17, 4804020), (18, 4537130), (20, 4083417), (26, 3141090), (30, 2722278), (34, 2402010), (36, 2268565), (39, 2094060), (45, 1814852), (51, 1601340), (52, 1570545), (60, 1361139), (65, 1256436), (68, 1201005), (78, 1047030), (85, 960804), (90, 907426), (102, 800670), (117, 698020), (130, 628218), (153, 533780), (156, 523515), (170, 480402), (180, 453713), (195, 418812), (204, 400335), (221, 369540), (234, 349010), (255, 320268), (260, 314109), (306, 266890), (340, 240201), (390, 209406), (442, 184770), (468, 174505), (510, 160134), (585, 139604), (612, 133445), (663, 123180), (765, 106756), (780, 104703), (884, 92385), (1020, 80067), (1105, 73908), (1170, 69802), (1326, 61590), (1530, 53378), (1989, 41060), (2053, 39780), (2210, 36954), (2340, 34901), (2652, 30795), (3060, 26689), (3315, 24636), (3978, 20530), (4106, 19890), (4420, 18477), (6159, 13260), (6630, 12318), (7956, 10265), (8212, 9945)]